Langer's Sudoku Assistant

Invalid Sudoku!

Column 2 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

4
5
6
9
1
3
1  2  3
4  5  6
7  8  9
2
7
1
2
9
4
7
1  2  3
4  5  6
7  8  9
3
8
6
8
3
7
5
2
6
4
9
1
8
9
5
7
4
2
3
6
1
2
6
7
8
1
3
9
5
4
1
4
3
6
5
9
7
8
2
6
3
4
5
7
8
1
3
9
5
9
1
6
3
2
7
4
8
   2  3
       
       
7
8
9
1
4
   2  3
       
       
6
5

 

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